public class String_06 {

    //
    public static void main(String[] args) {
        int[] arr={1,2,3};
        String s = arrayToString(arr);
        System.out.println(s);
    }

    public static String arrayToString(int[] arr) {
        String s="";
        s=s+"[";
        for (int i=0;i<arr.length;i++)
        if (i==arr.length-1){
            s=s+arr[i];
        }
        else
        {
            s=s+arr[i];
            s=s+",";
        }
        s=s+"]";
        return s;
    }
}
